684295097 has 2 divisors, whose sum is σ = 684295098. Its totient is φ = 684295096.

The previous prime is 684295091. The next prime is 684295111. The reversal of 684295097 is 790592486.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 622452601 + 61842496 = 24949^2 + 7864^2 .

It is a cyclic number.

It is not a de Polignac number, because 684295097 - 2⁴ = 684295081 is a prime.

It is not a weakly prime, because it can be changed into another prime (684295091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 342147548 + 342147549.

It is an arithmetic number, because the mean of its divisors is an integer number (342147549).

Almost surely, 2^684295097 is an apocalyptic number.

It is an amenable number.

684295097 is a deficient number, since it is larger than the sum of its proper divisors (1).

684295097 is an equidigital number, since it uses as much as digits as its factorization.

684295097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1088640, while the sum is 50.

The square root of 684295097 is about 26159.0347107840. The cubic root of 684295097 is about 881.2135018870.

The spelling of 684295097 in words is "six hundred eighty-four million, two hundred ninety-five thousand, ninety-seven".